Peel and chop the garlic. Wash basil, shake dry and chop. Wash the meat, dab dry and season with salt and pepper. Heat 2 tablespoons of oil in a frying pan. Fry the ciabatta in it until crispy, take it out.
Heat 2 tablespoons of oil in the frying fat. Fry the meat on all sides at medium heat for 10-12 minutes. Add garlic and 2 tbsp. basil shortly before the end of the frying time.
Wash the tomatoes and grate them dry. Peel and halve the onion and cut into thin strips. Heat 2 tablespoons of oil. Sauté the onion for about 2 minutes. Add tomatoes and sugar and steam for about 4 minutes.
Deglaze with vinegar and 150 ml water, bring to the boil and simmer for 1-2 minutes. Season to taste. Slice parmesan. Arrange everything. Add roasted ciabatta.